of dayton



Patented Sept. 20, A

. UNITED STATES.

PATENT OFFICE DALE M. PHILLIPPI, OI DAYTON, OHIO, ASSIGNOB TO m KAY Q 388 00., 01' DAYTON,

0310, A CORPORATION 01 OHIO mum III'IA'IIOII' LEATHER FINISH No Drawing.

This invention relates to enamels and yarnishes, and particularly to a finish that mtates the appearance of'leather.

It is the object of this invention to provide 5 an enamel varnish-which, when applied a suitable surface, will give to it a finishimitating leather. v

It is a further object of this invention to eliminate all blown oils and preoxidized oil thereby materially reducing the cost and improving the product,

It is an additional object to prov1de an enamel varnish which will employ in, the formula cheaper gums and resins than heretofore have been possible in connection with varnishes of this type. v A typical formula is the following:

A suitable substance to be used as Amberol,

in the above formula, is disclosed in S. Letters Patent No. 1,623,901, dated April 5,- 1927.

In order to prepare this varnish, I first take 20 gallons of China wood oil and 2 4 gallons refined linseed oil. These 'oils are mixed and heated at a normalrate to 480 F. They are then pulled from the fire. These oils may undergo an automate rise in temperature thereafter beyond 480 F.- but thisis unnecessary and too great a rise should be avoided.

When the temperature of these oils has started to drop reaching approximately 475 F., I add 3 pounds of litharge stirring until the litharge is taken up by the oil. The

temperature of this batch is then run back and forth between 460 and ,470" F. being held within this range for approximately 30 p minutes and in some cases a little longer until Application filed July -38,

together in me. Serial in. 380,248.

synthetic resin SOlld, known to the trade as Amberol B/S 1 Light. This is melted at a low heat. Then imately 425 F.

I then reduce the batch at once with 14' gallons each of heavy and light petroleum naphtha.

the temperature is carried back to approx- The resulting compound may be used by itself or' in combination with the product of the formula hereinafter recited.. If used with the next formula, they can be mixed proportion as high as one part each.

This formula is as follows:

. h Poundl South Sea gum 67 Litharge 3 Manganese linoleate 8 ,4 Cobalt linoleate 2 Gallons China wood oil 20 Linseed oil 2 Heavy petroleum naphtha 20 Light petroleum naphtha ..c 20

The cooking is carriel out in this manner.

Sixty-seven pounds. of South Sea gum arerun in the ordinary approved fashion customary in varnish .making. of China'wood oil and 2% gallons of refined linseed oil are mixed and heated slowly until they reach 300 or 350 F., then they are added slowly tothe gum when the latter has been well run. 1

Themixture is then carried to a temperature of 460 to 47 0 F. and held within this range in order to impart body to the mixture for about 30 minutes or a little longer.

I then stir into the batch 3 pounds of litharge until it is taken up and fully incorporated in the batch. The 8 pounds of manganese solid linoleate and 2 pounds of Then 20 gallons cobalt solid linoleate are allowed to melt in the batch.

I then reduce at once with 20 gallons each of heavy and light petroleum naphtha.

' Turpentine may be substituted 'for the naphtha. .Either the natural gum or a synthetic product as Amberol may be employed. When the natural product is usedthe result is a liquid of greater viscosi The fundamental basis is t e combination of a and a low cookedGhina wood'oil. The fi iil i airge has the fimction of drying the compound through and through while the manganese and cobalt linoleates act primar ily as surface or finish driers. The naphthas act as-thinners. The linseed oil is an antipol merizing agent.

e it understood that the result of my invention is applied to any suitable surface and baked in the usual manner which brings about the appearance of leather on the surface so treated with my product.

j It will be understood that I desire to comprehend within my invention and within the x scope of my claims such modifications as may be fairly comprehended within such claims, and invention due to the necessary modifications to adapt my invention to varying conditions of supply and of use and to varying purposes.

Havin thus fully described my invention, what I c aim as new and desire to secure by Letters Patent is:

1. In a method of manufacturing and im- 35 proving varnish 'or enamel for lmitating leather finishes mixing China wood oil and linseed oil, heating said oils to approximately 480 F. cooling the oil, incorporating litharge therewith, holding the temperature between approximately 460 to 470 F., for approxi- 'mately 30 minutes, adding manganse linoleate and cobalt linoleate, and adding a synthetic resin, restoring the temperature to approximately 425 F.

2. In an lmproved method of producing an imitation leather finish in a varnish, mixing gallons of China wood oil and 2% gallons 'hnseed oil, heating to 480 F., allowing to .cool to approximately 475 F., adding 3 pounds litharge, holding the temperature between 46Q470 F'. for approximately minutes, adding 8 pounds manganese linoleate' and 2 pounds cobalt linoleate adding 67 pounds of synthetic resin restoring the temperature to approximately 425 F. and reducing the batch with 14 gallons each of heavy and light petroleum naphtha.

In testimony whereof I aflix my signature.

DALE M. PHILLIPP I. 

